One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,11)(4,6)(5,8)(7,9)(10,15)(12,13)(14,16)(33,34,39,42)(35,40,45,38)(36,37,48,41)(43,47,46,44)(1,3,7,5)(2,8,9,11)(4,14,15,12)(6,13,10,16)(17,18,22,23)(19,21,25,30)(20,24,28,31)(26,29,32,27)(33,35,39,45)(34,40,42,38)(36,46,48,43)(37,44,41,47)(2,9)(4,15)(8,11)(12,14)(18,23)(19,25)(24,31)(26,32)(33,36,39,48)(34,41,42,37)(35,43,45,46)(38,47,40,44)(1,4,7,15)(2,10,9,6)(3,12,5,14)(8,13,11,16)(17,19)(18,21)(20,26)(22,25)(23,30)(24,29)(27,31)(28,32)(33,36)(34,37)(35,43)(38,44)(39,48)(40,47)(41,42)(45,46)(1,5,7,3)(2,11,9,8)(4,14,15,12)(6,13,10,16)(17,20)(18,24)(19,26)(21,29)(22,28)(23,31)(25,32)(27,30)(33,37)(34,36)(35,44)(38,43)(39,41)(40,46)(42,48)(45,47)(1,6,7,10)(2,4,9,15)(3,13,5,16)(8,14,11,12)(17,21)(18,25)(19,23)(20,27)(22,30)(24,26)(28,29)(31,32)(33,38)(34,35)(36,47)(37,46)(39,40)(41,43)(42,45)(44,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.